<html>
<head>
<title></title>
</head>
<style>
*{
margin:0;
padding:0;
}
.father{
width:200px;
height:200px;
background:red;
}
.father .son{
width:100px;
height:100px;
background:blue;
}
</style>
<script src="http://code.jquery.com/jquery-latest.js"></script>
<script>
$(function(){
$(‘.father‘).click(function(){
alert(‘father‘)
})
$(‘.son‘).click(function(){
alert(‘son‘)
})
$(‘.son‘).trigger(‘click‘) //自动触发事件，会有默认行为，father也会触发
$(‘.son‘).triggerHandler(‘click‘) //自动触发事件，会阻止默认行为
})
</script>
<body>
<div class="father">
<div class="son"></div>
</div>
</body>
</html>
原文：https://www.cnblogs.com/superCwen/p/9925416.html